Authentication¶
Authentication is the proof that a user is indeed who he claims to be. In a couple username/password, the password is the authentication, as only the user is supposed to know it. Identification is the other aspect of the problem.
See also HTTP authentication with PHP.
Related : Identification, Framework, hash_equals(), Null, Privacy, Access Control List (ACL), Identity, JSON Web Token (JWT), One-Time Password (OTP), Single Sign On (SSO), OAuth
Added in PHP 8.0
